Apparatus for pasteurizing and cooling milk.



S. SHAPIRO.

APPARATUS FOR PASTBURIZING AND 000mm MILK.

APPLICATION FILED AUG. 29, 1.913.

Patented Aug. 25, 1914.

INVE/VJOR Jzmuel Jlza are,

TTORNEY WITNESSES."

S. SHAPI-RO.

APPARATUS FOR PAS'I'BUBIZING AND GOOLING MILK. APPLICATION nun AUG. 29, 1913.

1 10 404. Patented Aug.25,1914,

3 SHEETS-SHEET 2.

WITNESSES IN VEN TOR Jamaal Shapiro THE JURR'IS PETERS CO7. PHOTO-LITHOH WASHINGTON, D, C,

S. SHAPIRO. APPARATUS FOR EASTEUEIZING AND COOLING MILK.

APPLICATION FILED AUG. 29, 1913.

Patented Aug. 25, 191% 3 SHEETS-SHEET 3.

WITNESSES:

ATTORNEY 7HE .JURRIS PE7ERS coy, PHOTO 1.1mm WASHINGTON, u, u,

PATENT OFFICE.

SA UEL sr-IArino, or PI-IiLAIJELPHIA, PENNSYLVANIA.

APPARATUS roe IPASTEURIZING Ann COOLING MILK.

mos m4.

Specification of Letters Patent.

Patented Aug. 25,

Application filed August 29, 1913. Serial No. 787,281.

To all whom it may concern:

Be it known that I, SAMUEL SIIAIIRO, a

citizen of the United States; residing at Philadelphia in the county of Philadelphia and State at Pennsylvania, have invented certain new and useful Improvements in Apparatus for lj-lasteurizing and Cooling Milk, of which thefollowing is a specification.

My invention apparatus for pasteurizing and cooling milk, an object of the invention being to provide an improved apparatus of this character in which theniilk may be heated and then cooled in the same receptacle, and duringthe operation agitated sulhc1ently to prevent the :stood that the tank maybe separation of lillGGlBiLlIl from themilk.

A further ()lJjBClllS to provide improved means for heating and cooling the milk while in the receptacle.

A further ob cct 1s to provide improved means for agitating the milk, nnproved means for filtering the milk as it passes from the receptacle, and provide improved thermometers which indicate the temperature of the contents of the receptacle.

A. further object is to provide an apparatug of the character stated with a plurality of chambers or compartment in which the operation of heating or pasteurizing and cooling may be carried on simultaneously or independently, and which apparatus reduces the handling of the milk to a minimum and insures a thoroughly pasteurized product to conform to the rules and regulations of any municipality. l

A further object is to provide an apparatus of this kind which may be kept absolutely clean and sterile so as to prevent the accuimilation of germs and to destroy any germ life that may be left in the receptacles after the milk has been Withdrawn.

"VVit-h these and other objects in view the invention consist in certain novel features or construction and combinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claims. 1

In the accompanying drawings: Figural is a view in side elevation illustrating my improvements. Fig. 2 is a top plan view. Fig. 3 is an enlarged view partly in vertical section and partly in elevation illustrating one of my improved thermometers. Fig; at is a view in longitudinal sectionthrough the center of thc apparatus. Fig. 5 is an end relates to improvements in elevation. Fig. 6 is a perspective view of one of the notched coil clamping bars 15. F ig. 7 is a view in vertical section showing the clamping bars in operative position.

Fig. 8 is a plan view of the apparatus witli the cover removed.. Fig. 9 is viewin transverse section on the line 9--9 of Fig. L

Fig. lOis a view in vertical section on an enlarged. scale illustratingone of my improved filters, and Fig. 11 is a view in section on the line 1111 01 Fig. 10.

My improved apparatus comprises a tank 1, preferably supported on suitable legs 2 and divided by a vertical partition two receptacles t, 4. \Vhile I have two receptacles it is of course to be shown underdivided into any: number of receptacles, and all. of the recep-: tacles are preferably lined with metal agindicated at 5.

A cover 6 fits on top of the tank and is provided throughout with a depending flange 7 havinga groove 8 in. its lower edge.

which fits over a raised bead 9 on the upper edge of the tank. This groove and bead form a tight 111110151118 between the cover and the tank, preventing any dirt from passing into th tank and also preventing any dirt from collecting on the edge of the tank wlieirtlie-cover is removed. 1 Inlet-s 10 are provided in the cover over both receptacles, and'these inlets are normally closed by pivoted covers 11. When pouring the milk into the receptacles; I

locate strainers 12 in theopenings 10 so that it entersthe receptacle.

A ventilator 13 is provided in the cover 6 at the center thereof and communicates with both receptacles as clearly shown in Fig. 4:, so that during the operation of pasteurizing, the animal gases and vapors accumulating may readily escape. 1 1

In the receptacles 4, I locatestationary relatively large pipe coils l-it which are preferably, though notessentially, of elliptical form in plan and are firmly held by clamp ingbars 15. These clamping bars are illusthe milk willbe thoroughly strained before tratedfin detail in Figs. 6 and 7 They are preferably of wood and are notched so as to receivethe convolutions between them. The lower ends of the bars are positioned in metal cops 16 securedin the bottom ofthe receptacles and the upper endsof thebars are connected .by bolts 17 havingwedgcs 18 therethrough, said bolts and wedges being 3 into preferably of wood. By means of this structure the bars may be readily secured in position and removed whenever desired to thoroughly clean the pipes by the ordinary scrubbing operation.

The lower convolution of each coil constitutes the inlet of the coil, and the lower ends of both coils are connected to an inlet pipe 19 having a valve 20 located in said inlet pipe between the two coils and also having an inlet valve 21 controlling the flow of fluid to both coils.

The upper convolutions of the coils constitute the outlets thereof, and both of these upper coils are connected to an outlet'pipe 22, the latter having a valve 23 located between the coils and also having a valve 24 which controls the flow through the outlet pipe.

By reason of the arrangement of valves above set forth, one coil may be operated without the other if desired, or both may be operated simultaneously.

To opposite ends of the tank 1, brackets 25 and 26 are secured. These brackets are arranged in pairs and support at their upper edges rollers 27 on which parallel horizontal bars 28 are mounted to move longitudinally. The bars 28 are also arranged in parallelism as shown clearly in Fig. 8, and each bar comprises two longitudinally grooved sections so as to accommodate between them, pipes 29 and 30 respectively.

The pipe 29 constitutes an inlet pipe and pipe 30 an outlet pipe. Located in both receptacles 4 and inside of the coils 14, I provide relatively small movable coils 31. The lower ends of these coils are connected to the inlet pipe 29, and the upper ends of the coils are connected to the outlet pipe 30. The coils 31, as a matter of fact, form continuations of these inlet and outlet pipes and are supported by the inlet and outlet pipes, and the latter supported by the bars 28, so that as the bars 28 are moved longitudinally, they will move the small coils 31 with them.

Valves 32 are provided in the small coil 31 in one of the receptacles 4, so that this coil may be cut out of operation if desired.

33 represents a supply pipe which connects with pipe 19 at a point between the valve 21 and the inlet to the nearest coil 14. This supply pipe is connected by a T-coupling 34 with a hot fluid supply pipe 35 and with a cold fluid supply pipe 36 having valves 37 and 38 respectively therein, so that by opening and closing these valves, the fluid of any desired temperature may pass to the apparatus.

The inlet pipe 29 of thesmaller coils is connected by a flexible supply pipe 39 with a T-coupling 40, the latter communicating with a hot fluid supply pipe 41 and a cold fluid supply pipe 42, said supply pipes having valves 43 and 44 therein, so that by regulating these valves 43 and 44 the temperature of the fluid supplied to the smaller coils can be controlled.

In heating, I may use hot water, steam, or other hot fluid, and in cooling, cold water, brine, or other coolin fluid, but in anyevent it is to be understoo that the fluid passing through both coils can be changed from hot to cold and vice versa entirely within the control of the operator.

To prevent the separatlon of the cream and milk during the heating and cooling operation, it is necessary to move the coils 31 backwardly and forwardly in the milk, and to do this, I provide a crank shaft 45 which is supported in the brackets 25 and in a third bracket 46, and is provided at its outer end with any approved means 47 for turning the same. y

A crank arm 48 on the shaft 45 is pivotally connected by a link 49 with a block 50, the latter secured to both bars 28. When the crank shaft 45 is revolved, it will, through the medium of the link 49, impart a reciprocating movement to the bars 28, and cause the small coils 31 to move through the milk and sufficiently agitate the milk to prevent separation.

In the bottom of the receptacles 4, I pro" vide truncated conical outlet chambers 51 with which outlet pipes 52 communicate. These pipes 52 extend to one side of the apparatus, and are provided with valves 53. The pipes 52 are connected by couplings 54 with an outlet pipe 55, so that milk from both receptacles may be discharged through the pipe 55 into a bottling machine, and I would have it understood that I preferably so locate the apparatus that the milk will feed by gravity to the bottling machine, so that I may eliminate the necessity for a pump.

Each outlet chamber 51 is provided with a truncated conical screen 56 spaced from the wall of the outlet chamber by a plurality of wedge shaped strips 57, and said screen preferably contains gravel 58, and is provided with a handle 59 to permit the removal of the screen and the cleaning thereof whenever desired.

The screen and the gravel form a filter, so that the milk as it flows out of the re ceptacle is thoroughly filtered before passing to the bottling machine.

Each receptacle 4 is provided with a thermometer 60 as shown in detail in Fig. 3. The lower end of the thermometer constitutes a metal tubular extension 61 which projects into the receptacle a distance to insure a proper recording of the temperature of the contents of the receptacle ind not be affected materially by the outside temperature.

The cover '6 is preferably supported on pivoted links 62, one of which has a gear 63 at its pivot point driven by a pinion I ture of the milk reaches the .necessarvxde gree for pasteurizing, when the valvesare operated. to maintain this: temperature and such temperature is maintainedfiior the desn'ed length oftime in accordance with the mun cipal regulations. Vl hlle the milk is being heated, the coils 31 are moved backwardly and liorwardly through the milk as above explained, and whenthe pasteuriaing operation is completed,the valvesareopertus is maintained in a ated to admit the cooling liquid to the 'ioils, so thatthetemperature oi. the milk maybe lowered to the desired degree, when the milk is drawn oil through the filters and bottled.

\Vhen the operation of pastcurizing and cooling is ended, the interior of the receptacle and the coils may be thoroughly cleaned in the ordinary manner by brushing and scrubbing and after this operation is over, the cover 6 is placed on the apparatus and the hot steam or water admitted to the coils tobring the temperature oil. the

air within the receptacles to a degree suflicient to destroy any germ life within the apparatus. This heat not only thoroughly dries the apparatus, but thoroughly externiinates any germ life so that the apparaperfectly sanitary condition. i

It will also be noted that when the milk is poured into the receptacle, it is both pasteurized and cooled in the same receptacle, so that the handling of the milk is reduced to a minimum.

The valves 21 and 29 in pipes 19 and 29 respectively are normally closed, but may be opened when solneother fluid such as brine is forced through the pipes from some and cooling coils in the receptacle, onecoil source (not shown).

Various slight changes might be made in the general form and arrangement of parts described without departing from my in vention, and. hence I do not limit myself to the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly tall with in the spirit and scope of the appended claims.

Having thus described my invention, what ll claim as new and desire to secure by Letters Patent is:

1. An 'ibcd, comprising a. receptacle, heating located inside the other, and means for moving one of said coils, substantially as described.

apparatus or the character do 2. An a-pparatus of .theYcharacter described, comprising a receptacle, two heal ing and cooling coils iirthe receptacle, one cell lQCltlJQClilllSlCl the other, parallel bars supportlng one of said coils and movable on top oil the receptacle, nc-ans on one end of;

SiLlCl bars,

the I receptacle for reciprocating the inlet andoutlet pipes ofsziid last-men tioned coil located parallel to each otherand :)po-1:-tcd onsaid bars,substantially as de :1 bed. a: in an apparatus or the character described, the combination with a receptacle,

a stationary coil within the receptaclegfia movable coil within the receptacle, means lor'directlng fluid into said ends, reciprocating bars supporting said movablecoil, and

means for reciprocating the bars, substantially as described. i i 1 In an apparatus of the character described, the combination with a tank divided into a plurality of receptacles, of relatively large stationary coils in the said receptacles, reciprocating bars mounted in the upper portions of the receptacles, relatively small coils supported by said. bars and located within the relatively large coils, and means for supplying said coils, substantially as described. H

5. In an appantus lot the character described, the coi'ubim tion with a tank divided into a plm-ality of receptacles, of relatively large stationary coils inthesaid receptacles, reciprocating bars mounted in the upper portions of the receptacles, relatively small coils supported by said bars and located within the relatively large coils, means for supplying heating and cooling agents to said coils, brackets onthe ends oi. the apparatus, rollers on said brackets supporting the bars, and means at one end of thereceptacles for reciprocating the bars, substantially as described.

(i. In an apparatus of the character described, the combination with a receptacle,

oifa stationary coil in the receptacle, bars mounted to reciprocate in the upper portion of tlureceptacle and constituting two grooved sections secured together, an inlet pipe housed. within one bar and an outlet pipehoused within the other bar, and a relatively small coil connected at its ends with said inlet and outlet pipes and movable in the receptacle withinthe fixed coil, substantially asd ribed.

7. In an apparatus of the character described, the combination with a tank divided into a plurality of receptacles, of bars mounted to slide in the upper portions of the receptacles, inlet and outlet pipes carried by said bars, each bar comprising; two longitudinally grooved sections inclosing the said pipes, coils suspended from the bars and communicating at their endswith said inlet and outlet pipes, and stationary coils located to i heating and cooling agents to scribed, the combination With a tank divided into a plurality of receptacles, of bars mounted to slide in the upper portions of the receptacles, means on one end of the tank for reciprocating said bars, inlet and outlet pipes carried by said bars, each bar comprising two longitudinally grooved sections inclosing; the said pipes, coils suspended from the bars and communicating at their ends with said inlet and outlet pipes, means on the outside of thetank for reciprocating the bars, andstationary coils located Within the tank and inside of which said firstmentioned coils are movable, substantially as described. i

9. In an apparatus of the character de scribed, the combination'with areceptacle, of stationary heating and cooling means in the receptacle, reciprocating means above the receptacle, and a heating and cooling device carried by the reciprocating means, substantially as described. a i

In testimony whereof I have signed my nameto this specification in the presence of two subscribing Witnesses.

SAMUEL SHAPIRQ.

itnesses i M. E; Drrrus, CHAs. E; 'Po'rrs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G. i 

